Share:

The Hanna Phosphate Ultra Low Range (0.00 to 0.90 ppm) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color.

Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light-sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars.

The Hanna Phosphate Ultra Low Range Checker® uses a fixed wavelength LED and silicon photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

Phosphate Range 0.00 to 0.90 ppm

Phosphate Resolution 0.01 ppm

Phosphate Accuracy +/- 0.02 ppm +/- 5% of reading

Phosphate Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic-Acid method. The reaction between phosphate and the reagent causes a blue tint in the sample.

Photometer/Colorimeter Light Source LED @ 525 nm

Photometer/Colorimeter Light Detector silicon photocell

Battery Type/Life (1) 1.5V AAA

Automatic Shut-Off after seven minutes of non-use and two minutes after taking a reading